Red Hat System Administration III (RH254)

Course code: RH-254

Exam Code: RH-254

Duration: 40 Hours



Red Hat System Administration III (RH254), related to Red Hat Enterprise Linux 7, is designed for experienced Linux system administrators who hold a Red Hat Certified System Administrator (RHCSA) certification or equivalent skills and who want to broaden their ability to administer Linux systems at an enterprise level.

The course is focused on deploying and managing network servers running caching Domain Name Service (DNS), MariaDB, Apache HTTPD, Postfix SMTP nullclients, network file sharing with Network File System (NFS) and Server Message Block (SMB), iSCSI initiators and targets, advanced networking and firewalld configurations, and using Bash shell scripting to help automate, configure, and troubleshoot the system.

Through lectures and hands-on labs, RHCSA-certified professionals will be exposed to all competencies covered by the Red Hat Certified Engineer (RHCE) exam.

  • Network port security and link aggregation
  • iSCSI initiator and target configuration
  • DNS troubleshooting and caching name server
  • Provisioning NFS and SMB file servers
  • Apache HTTPD web server management
  • MariaDB SQL database configuration
  • Postfix SMTP nullclient for servers
  • Bash scripting for automation
Target Audience

Experienced Linux administrators who have earned RHCSA certification or have equivalent skills and wish to learn enterprise-level automation techniques through scripting, how to deploy and secure network services, and how to manage other key security features of Red Hat Enterprise Linux


Configure, manage, and test network settings.


• Manage user accounts, including password aging, and connect to a central LDAP directory service.

• Launch, monitor, govern, and terminate processes using the Bash command line.

  • Schedule recurring tasks; monitor and manage system logs.
  • Installing and managing software
  • Install software and query with yum using RHN and a custom repository.

• Access remote systems using command-line and graphical techniques.

• Install and manage basic network services, including firewall configuration.

• Manage SELInux booleans and file system contexts.

• Manage encrypted partitions, file systems, and swap space.
Using file system Access Control Lists
• Restrict file access with file system ACLs.

• Understand logical volume concepts and manage logical volumes, including snapshots.

• Understand runlevels and manage GRUB

• Pass parameters to the kernel and manage kernel modules.


• Deploy and manage KVM virtual machines.


• Create Kickstart configurations and use them to install Linux.


  • Access Red Hat documentation and services.

Review how to manage services and the boot-up process using systemctl.

Manage IPv6 Networking

Configure and troubleshoot basic IPv6 networking on Red Hat Enterprise Linux systems.

Configure Link Aggregation and Bridging

Configure and troubleshoot advanced network interface functionality, including bonding, teaming, and local software bridges.

Permit and reject access to network services using advanced SELinux and firewalld filtering techniques.

Manage DNS for Servers

Set and verify correct DNS records for systems and configure secure DNS caching.

Relay all email sent by the system to an SMTP gateway for central delivery.

Provide and use networked iSCSI block devices as remote disks.

Provide a MariaDB SQL database for use by programs and database administrators.

Configure Apache HTTPD to provide Transport Layer Security (TLS)-enabled websites and virtual hosts.

Write simple shell scripts using Bash.

Use Bash conditionals and other control structures to write more sophisticated shell commands and scripts.

Customize Bash startup and use environment variables, Bash aliases, and Bash functions.

Preview the capabilities of Linux containers, Docker, and other related technologies in Red Hat Enterprise Linux 7.

Practice and demonstrate knowledge and skills learned in Red Hat System Administration III.

  • Access & manage files from the command line 
  • Create, view, and edit text files 
  • Manage local Linux users and groups
  • Monitor and manage Linux processes
  • Control services and daemons
  • Control access to files with Linux file-system permissions
  • Analyze and store log files
  • Configure and secure the OpenSSH service
  • Install and update software packages
  • Access Linux file systems
  • Manage Linux networking

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